fix(backend): Fix dockerfile

.dockerignore

@@ -1,5 +1,5 @@
 .git
 .github
 ci
-target
-test_suite
+target/
+Dockerfile

.github/workflows/deploy_backend.yml

@@ -14,6 +14,7 @@ jobs:
       - name: Set GITHUB_TAG env
         id: vars
         run: echo ::set-output name=GITHUB_TAG::${GITHUB_REF:18} # Remove /refs/head/backend/
+      - run: echo "Publishing reacherhq/backend:$GITHUB_TAG"
       - name: Publish to Registry
         uses: elgohr/Publish-Docker-Github-Action@master
         with:

CHANGELOG.md

@@ -22,7 +22,7 @@ pub struct CheckEmailInput {
   // --snip--
 }
 ```
-* Remove HTTP backend from CLI (#1151)
+* Remove `--http` flag has been removed from `check-if-email-exists` CLI. To run a HTTP backend, please refer to the [backend](./backend) subfolder.
 
 ### Features
 

Dockerfile

@@ -0,0 +1,45 @@
+# From https://shaneutt.com/blog/rust-fast-small-docker-image-builds/
+
+# ------------------------------------------------------------------------------
+# Cargo Build Stage
+# ------------------------------------------------------------------------------
+
+FROM messense/rust-musl-cross:x86_64-musl as cargo-build
+
+WORKDIR /usr/src/reacher
+
+RUN rm -f target/x86_64-unknown-linux-musl/release/deps/reacher*
+
+COPY . .
+
+ENV SQLX_OFFLINE=true
+
+RUN cargo build --bin reacher_backend --release --target=x86_64-unknown-linux-musl
+
+# ------------------------------------------------------------------------------
+# Final Stage
+# ------------------------------------------------------------------------------
+
+FROM alpine:latest
+
+RUN addgroup -g 1000 reacher
+
+RUN adduser -D -s /bin/sh -u 1000 -G reacher reacher
+
+WORKDIR /home/reacher/bin/
+
+COPY --from=cargo-build /usr/src/reacher/target/x86_64-unknown-linux-musl/release/reacher_backend .
+
+RUN chown reacher:reacher reacher_backend
+
+USER reacher
+
+ENV RUST_LOG=reacher=info
+ENV RCH_HTTP_HOST=0.0.0.0
+ENV PORT=8080
+# Bulk verification is disabled by default. Set to 1 to enable it.
+ENV RCH_ENABLE_BULK=0
+
+EXPOSE 8080
+
+CMD ["./reacher_backend"]